Table View only loads if I put phone in landscape mode - ios

Question

I have a custom table view, which when I run the app, shows up blank, like it hasnt been loaded, but when I tilt my phone to landscape mode, the entries appear, which really doesnt make sense to me. Any suggestions?
Edit: Here is my code
import UIKit
import Alamofire
import ObjectMapper
class LotteryTableViewController: UITableViewController {
let lotteryMachine = LotteryMachine()
var currentStandings: [Team] = []
var draftStandings: [Team] = []
override func viewDidLoad() {
super.viewDidLoad()
let headers = [
"User-agent": "LotteryMachine/1.0 (nilayneeranjun24#gmail.com)",
]
Alamofire.request(.GET, "https://erikberg.com/nba/standings.json",headers: headers)
.responseJSON { response in
let parentJson = Mapper<Standings>().map(response.2.value)
let standingsArray: [Team] = parentJson!.standing!
self.currentStandings=standingsArray
self.draftStandings=self.lotteryMachine.setPossibleCombinations(standingsArray)
self.draftStandings=self.lotteryMachine.setDraftPositions(self.draftStandings)
print (self.draftStandings.toJSON())
}
}
// Uncomment the following line to preserve selection between presentations
// self.clearsSelectionOnViewWillAppear = false
// Uncomment the following line to display an Edit button in the navigation bar for this view controller.
// self.navigationItem.rightBarButtonItem = self.editButtonItem()
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
// MARK: - Table view data source
override func numberOfSectionsInTableView(tableView: UITableView) -> Int {
return 1
}
override func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return draftStandings.count
}
override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
let cellIdentifier = "LotteryTableViewCell"
let cell = tableView.dequeueReusableCellWithIdentifier(cellIdentifier, forIndexPath: indexPath) as! LotteryTableViewCell
let position = self.draftStandings[indexPath.row].draftingPosition!
let teamName = self.draftStandings[indexPath.row].lastName!
let record = String(self.draftStandings[indexPath.row].won!) + "-" + String(self.draftStandings[indexPath.row].lost!)
let player = "Ben Simmons"
cell.position.text = String(position)
cell.teamName.text = teamName
cell.record.text = String(record)
cell.player.text = player
cell.teamLogo.image = UIImage(named: "lakers")
// Configure the cell...
return cell
}
/*
// Override to support conditional editing of the table view.
override func tableView(tableView: UITableView, canEditRowAtIndexPath indexPath: NSIndexPath) -> Bool {
// Return false if you do not want the specified item to be editable.
return true
}
*/
/*
// Override to support editing the table view.
override func tableView(tableView: UITableView, commitEditingStyle editingStyle: UITableViewCellEditingStyle, forRowAtIndexPath indexPath: NSIndexPath) {
if editingStyle == .Delete {
// Delete the row from the data source
tableView.deleteRowsAtIndexPaths([indexPath], withRowAnimation: .Fade)
} else if editingStyle == .Insert {
// Create a new instance of the appropriate class, insert it into the array, and add a new row to the table view
}
}
*/
/*
// Override to support rearranging the table view.
override func tableView(tableView: UITableView, moveRowAtIndexPath fromIndexPath: NSIndexPath, toIndexPath: NSIndexPath) {
}
*/
/*
// Override to support conditional rearranging of the table view.
override func tableView(tableView: UITableView, canMoveRowAtIndexPath indexPath: NSIndexPath) -> Bool {
// Return false if you do not want the item to be re-orderable.
return true
}
*/
/*
// MARK: - Navigation
// In a storyboard-based application, you will often want to do a little preparation before navigation
override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
// Get the new view controller using segue.destinationViewController.
// Pass the selected object to the new view controller.
}
*/
}

Answer 1

Alamofire.request is async in nature. So when the table first loads, the request is still executing and your draftStandings doesn't have any data. When you rotate, the table is reloaded and by that time draftStandings does have some data already which the table shows.
Try adding a tableView.reloadData() after setting the draftStandings in the request response.